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S. E. BUTTER. MECHANISM FOR STROPPING OR HONING RAZOR BLADES.

APPLICATION FILED DEC.2U. i917.

Patented July 1, 1919.

2 SHEETS-SHEET I.

Inventor: Ernestfl utten Sydne I THE C(ILUMBIA' PLANOURAPH c0., WASHINGTON, D. c.

S. E. BUTTER.

MECHANISM FOR STROPPING 0R HONING RAZOR BLADES. APPLICATION FILED Dc.20, 1917.

1,308,196. Patented July 1, B519.

2 SHEETS-SHEET 2' 5 a 9 l3 ,5 m 06.5.

1 5 E54 1 3 i 1 5 5 a}? a a n ivL fl LL 1 E 15 5: 15

THE COLUMBIA PLANDGRAPII 60., WASHINGTON, D. C

razor, without substantially be connected. to the handle of with reference to rATENT OFFICE.

' p 7 ENGLAND, ASSIGNOR T0 DOROTHY JAY HARRIS, OF LONDON, EN GLAND. l l

MECHANISM Fonsmorrme onnonnve RAZOR-BLADES.

Application filed December 20, 1917. s ri n 208,175.

To all whom it may concern: l

Be it known that I, SYDNEY ERNEST Run TER, a subject of the King of Great Britain, residing at 7 0 Shenley road," Camberwell, London, S. E. 5, England, have invented certain new and useful Improvements in Mechanism for Stropping Blades,of which the following is a specification. U 1

This invention relates to mechanism for the stropping or honing of razor blades, and it has for its object to enable bladessuch as are used more particularly withsafety razors, to be sharpenedin a simple, safe and reliable manner, and for this purpose to pro- Vide a mechanism adapted for use either separately or combined with increasing the cost of the latter in either case.

To this end this invention relatesmore especially to a stropping mechanism of the kind in which provision is made of a rotatable blade holder and a rotary actuating member, arranged so that the latter by frictlonal reciprocation on a stroppingor'honing surface causes theedge of the blade'on both sidesto be moved alternately into contact with the strap by oscillating the blade holder at each end of its reciprocatory movements. l l

Now, according to this inventionthe' rotatable blade holder forms readily detachable part so that it may be resome cases be used with the blade in the shaving position and removed therefrom into the stropping position or vice versa. oreover, the rotary actuating member, by preference jointly with a guide member, either forms part a separate handle, or it may form part of, or he safety razor. These and other characteristic features of the invention will be more fully-described the accompanying drawings, in which :5- t

Figure 1 shows the stropping mechanism as a separate contrivance in plan view.

Specification of Letters Patent.

or Honing Razorfpartly In section.

any safety parts... a a

a In; the above drawings erence numbe a separate and "to an end plate or moved from its actuatlng mechanism and 1n h of, or is connected to a.

pin 11 arranged in the tion, and the former into an opening 12 arranged in the plate 5.

Patented July 1, 1919.

the blade holder blades. right angles to Fig. 1,

Fig. 2 shows separately adaptedto hold Grillette Fig. 3 is a View at tlonin the, stropping mechanism.

Fig; 4 is asection'onthe line IVIV of Fig.2. Fig. 5fis Fig. Fig. 6 shows in plan view a modified construction of the stropping mechanism with the blade and holder or actuator partly removed.

Fig. is a right a section on the line Vl of angle view of Fig. 6,

F1g.I8 is a top plan view of Fig. 6 and Fig. 9 shows ina transverse section of Fig." the use of thefstropping device and the triangular arrangement of all figures are drawn on an enlarged scale, and similar refis are employed to designate similar parts. "Referring first to Figs. 1 to 4, the stropping. mechanism shown comprises a rotary actuatorinthe form of a friction roll 1, a guide member in the form of a stationary or rotatable cylindrical roll 3, anda r0tatable blade holder 2.. andtheig'uide member 3 are connected at one end to a handle 4 and at the other end bcaring5. The blade older 2 comprisesa cylindrical stem 6 and the holder proper7; This holder 2, adaptedto'receive a blade 8 is so arranged that it may be readily attached to, or detached from the stropplng mcchanlsm. To this end the T end with a central bore 10*, the latter being adapted to be slipped over a spring actuated adjacent handle por- The spring 13 sup porting the pin 11 tends to hold this pin in its protruding position, and when the bore 10 is slipped over the pin 11, the stem 6 bearing on a cylindrical The friction roll 1 socket 14; of the pin showing theblade holder of Fig. 2 in posiits principal the spring 13, until and held therein causes the latter to .yield in opposition to the other end 9 of the stem is in position in the opening 12 and the ressure on, the pin 11 is relieved. .VVith the blade holder in position, the axes-of the seen .more particularly from Fig. 9 that by placing the .contrrvance upona friction surface, suchas a strop 17 so that the roll 1 and the guide 3 [lay fiat thereon, and'reciprocating the contrivance in the direction of the arrows, at, b, se n 1. in its alternate rotation will cause by the engagement of the gear wheels'15 and 16 the blade holder 2 to oscillate, and the edge of the blade con- ,tained in the holder to be .brought :on either side alternately into contact with, the .strop during the subsequent longitudinal movement until by the reversal of theglatter the holder isrocked into its new position. With this mechanism the strop need, therefore, not be first threaded or in sorted. between the; actuating parts, but the handle "4: is shown derstood that the ticula'r make. In

portion proper stropping or honing may,

as will be seen, be friotiongsurface suitable for the requisite purpose. The-plate or bearing 18 .to which the drawings the I to be connected by a screw socket 19 may, of course, be permanentlyattachedto the handled, if-desired, as shown for example in Fig. -6' hereinafter more fully described f Y From the foregoing itwill'be readily unholder 2 may be constructed to receive razor blades of any par- Figs. .2, 3, 4:, 5 and 6, for instance,the holder is particularly designed for Gillette blades. To this end theholder stem 6 consists of a plate 7. provided with two lugs 20 produced by stamping or in some other known manner, so as toform I hook-shaped members, as clearly shown in abutment Fig. 4:. One of the transverse edges 21 of the plate is slightly curved, as shown at 21,

and provided with a rectangular offset or 22. The blade 8, assumed in this case to be provided with the usual holes 23, is placed over the plate 7 so that the lugs 20 slip into these holes and overlap the edges thereof when the curved edge 21 of the into engagementwith the latter, after which the blade is in position for stropping. As

the stropping movementpisj-at right angles, to

the direction of the lugs 20, the latter hold securely connected to the the blade securely in this position, although a very small exertion is required to slip the blade off and detach it from the holder after stropping.

the construction of the stropping mechanism shown in Figs. 6 to 9, the handle 46* is loop shaped, and, as already indicated in connection with Fig. 4, has the bearing plate -18'permanently attached to it. In this .case the bearing plates 5 and 18, however, are much longer than in the previous construction for the purpose of enabling the guide member 3 to be set farther apart from the actuator 1 and thereby to increase the contact surfaces on the strop. In this construction, moreover, one shank of the handle 1 is shown to form a brace 4. between the end plates '5 and 18. The stem 6 of the blade holder is of the same construction as before, the central bore 10 arranged in its end again serving to he slipped over a pin or journal 11 while its opposite end or trunnion 9 is adaptedto be slipped through the hole 12 in the bearing plate 5. Instead of the spring 13, however, supporting the journal 11 as in the other construction, a flat otherwise to hold the blade holder in its correct position in the stropping device. In this position, as shown in Fig. 9, the blade holder offers the advantage of an enlarged contactsurface with the strop the bottom edges 5 and 18 of the bearing plates assisting the .user in keeping the device in a correct flat position.

It is obvious that numerous modifications are possible to those skilled-in the art, both 'as regards. the characteristic features and constructive details of this invention, without departing from thespirit thereof and that this invention, therefore, must not be held to be limited to any of the specific constructions shown and hereinbefore described. What I claim and desire to protect by Letters Patent is 1. A mechanism for stropping or honing razor blades comprising in combination a holding frame provided with bearings, a rotary actuator journaled therein and a rotatable blade holder having one end of its stem provided with a trunnion member adapted to fit a hole in one of the bearings of said holding frame and its other end with a pinion having a central bore adapted to be slipped over a trunnion journal yieldingly arranged in the other bearing thereof.

2. A mechanism for stropping or honing razor blades comprising in combination a hold-ingframe provided with bearings, a rotary actuator journaled therein and a rotatable blade holder detachable therefrom and 130 having a blade holding late provided with hook shaped lugs and a l aiteral flange for the engagement With and the seatin thereon respectively of a blade, substantia 1y as described.

3. A mechanism for stropping or honing razor blades comprising in combination a ro tary actuator, a rotatable blade holder in engagement With and detachable from the actuator, a guide member, bearing plates in which the opposite ends of the actuator, blade holder and guide member are journaled at the points of a triangle and a handle. connected to one of the bearing plates substantially as described.

In testimony whereof I have afiixed my signature in presence of two Witnesses.

SYDNEY ERNEST BUTTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of IPatents,

Washington, D. G. 

